A big circular coil with \(1000\) turns and an average radius of \(10~\text{m}\) is rotating about its horizontal diameter at a rate of \(2~\text{rad s}^{-1}.\) The vertical component of the Earth's magnetic field at that location is \(2\times 10^{-5}~\text{T},\) and the electrical resistance of the coil is \(12.56~\Omega,\) the maximum induced current in the coil will be:
1. \(2~\text{A}\) 2. \(0.25~\text{A}\)
3. \(1.5~\text{A}\) 4. \(1~\text{A}\)

Subtopic:  Faraday's Law & Lenz Law |
 60%
Level 2: 60%+
NEET - 2022
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A Wheatstone bridge is used to determine the value of unknown resistance \(X\) by adjusting the variable resistance \(Y\) as shown in the figure. For the most precise measurement of \(X\), the resistances \(P\) and \(Q\):
1. do not play any significant role.
2. should be approximately equal to \(2X\).
3. should be approximately equal and are small.
4. should be very large and unequal.
Subtopic:  Wheatstone Bridge |
 76%
Level 2: 60%+
NEET - 2022
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Two point charges \({-q}\) and \({+q}\) are placed at a distance of \({L},\) as shown in the figure.
          
The magnitude of electric field intensity at a distance \({R}~(R \gg L )\) varies as:
1. \(\dfrac{1}{{R}^{6}}\) 2. \(\dfrac{1}{{R}^{2}}\)
3. \(\dfrac{1}{{R}^{3}}\) 4. \(\dfrac{1}{{R}^{4}}\)
Subtopic:  Electric Dipole |
 71%
Level 2: 60%+
NEET - 2022
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Match List-I with List-II.
List-I List-II
(a) Gravitational constant (\(G\)) (i) \([{L}^2 {~T}^{-2}] \)
(b) Gravitational potential energy (ii) \([{M}^{-1} {~L}^3 {~T}^{-2}] \)
(c) Gravitational potential (iii) \([{LT}^{-2}] \)
(d) Gravitational intensity (iv) \([{ML}^2 {~T}^{-2}]\)
Choose the correct answer from the options given below:
(a) (b) (c) (d)
1. (iv) (ii) (i) (iii)
2. (ii) (i) (iv) (iii)
3. (ii) (iv) (i) (iii)
4. (ii) (iv) (iii) (i)
Subtopic:  Gravitational Potential |
 72%
Level 2: 60%+
NEET - 2022
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A series \(LCR\) circuit with inductance \(10~\text{H}\), capacitance \(10~\mu \text{F}\), resistance \(50~\Omega\) is connected to an AC source of voltage, \(V=200 \sin (100 t) \text { volt }\). If the resonant frequency of the \(LCR\) circuit is \(\nu_0\) and the frequency of the AC source is \(\nu\), then:
1. \(\nu=100 ~\text{Hz} ; ~\nu_0=\dfrac{100}{\pi} ~\text{Hz}\)
2. \(\nu_0=\nu=50~\text{Hz}\)
3. \(\nu_0=\nu=\dfrac{50}{\pi} ~\text{Hz}\)
4. \(\nu_{0}=\dfrac{50}{\pi}~ \text{Hz}, \nu=50 ~\text{Hz}\)
Subtopic:  Different Types of AC Circuits |
 75%
Level 2: 60%+
NEET - 2022
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A ball is projected with a velocity of \(10~\text{m/s}\) at an angle of \(60^\circ\) with the vertical direction. Its speed at the highest point of its trajectory will be:
1. \(10~\text{m/s}\) 2. zero
3. \(5\sqrt{3}~\text{m/s}\) 4. \(5~\text{m/s}\)
Subtopic:  Projectile Motion |
 61%
Level 2: 60%+
NEET - 2022
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What is the pH of a solution prepared by mixing equal volumes (50 mL each) of 0.10 M sodium acetate and 0.01 M acetic acid?
[Given pKa of CH3COOH = 4.57]
1. 2.57
2. 5.57
3. 3.57
4. 4.57

Subtopic:  pH calculation |
 66%
Level 2: 60%+
NEET - 2022
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Which one is not the correct mathematical equation for Dalton's Law of partial pressure?
(Here p = total pressure of a gaseous mixture)
 
1. \(p_i=\chi_ip^o_i,\) where \(\chi_i=\) mole fraction of \(i^\text{th}\) gas in a gaseous mixture
   \(p_{i}^{o}=\) pressure of \(i^\text{th}\) gas in a pure state
2. \(\mathrm{p}=\mathrm{p}_{1}+\mathrm{p}_{2}+\mathrm{p}_{3} \)
3. \(\mathrm{p}=\mathrm{n}_{1} \frac{\mathrm{RT}}{\mathrm{V}}+\mathrm{n}_{2} \frac{\mathrm{RT}}{\mathrm{V}}+\mathrm{n}_{3} \frac{\mathrm{RT}}{\mathrm{V}}\)
4. \(\mathrm{p}_{i}=\chi_{i} \mathrm{p} \), where \(\mathrm{p}_{i}=\) partial pressure of \(i^\text{th}\) gas
    \(\chi_i=\) mole fraction of \(i^\text{th}\) gas in a gaseous mixture
Subtopic:  Dalton's Law |
 56%
Level 3: 35%-60%
NEET - 2022
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The incorrect statement regarding enzymes is:
1. Enzymes are very specific for a particle reaction and substrate.
2. Enzymes are biocatalysts.
3. Like chemical catalysts, enzymes reduce the activation energy of bio processes.
4. Enzymes are polysaccharides.
Subtopic:  Catalyst |
 79%
Level 2: 60%+
NEET - 2022
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Match List-I with List-II.
List-I List-II
(a) Li (i) absorbent for carbon dioxide
(b) Na (ii) electrochemical cells
(c) KOH (iii) coolant in fast breeder reactors
(d) Cs (iv) photoelectric cell
Choose the correct answer from the options given below:
(a) (b) (c) (d)
1. (ii) (iii) (i) (iv)
2. (iv) (i) (iii) (ii)
3. (iii) (iv) (ii) (i)
4. (i) (iii) (iv) (ii)
Subtopic:  Preparations, Properties & Uses of S Block Elements |
 77%
Level 2: 60%+
NEET - 2022
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